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IBM XIV Storage System Technical Solutions V4 Sample Questions:

1. A customer complains that their SAP database now performs worse than it did before being migrated from traditional RAID storage to XIV. The database was configured using 20 x 200GB XIV LUNs presented to an AIX 6 host OS where they are concatenated and striped into six volumes for the databases and logs. No changes have been made in the transition to XIV.
What if anything can be done to improve performance?

A) the SAP volumes should be put into a QoS Performance Class
B) implement static load balancing and increase the queue depth of the host adapters
C) add Fibre Channel adapters to the host and balance volumes across the adapters
D) the databases should be reorganized into larger volumes on the XIV and not striped within the OS

2. How much space will an XIV snapshot allocate from the pool's snapshot reserve when its created?

A) 17GB pervolume
B) 17GBpersnapshot
C) 17GBperpool
D) 0 GB per snapshot

3. A customer wants to ensure resource availability for their SAP application by implementing Q0S. How could the performance class be defined?

A) limited to 10,000 IOPS and add all hosts except the SAP application to it
B) for half of the interface modules add all hosts, with the remaining modules serving the SAP application
C) limited to 10,000 IOPS and add the SAP application servers to it
D) for half of the interface modules add the SAP application, with the remaining modules serving all other I/O

4. A customer has requested a highly available solution with fully concurrent fail over for a VMware farm of hosts. The customer also has Oracle databases that demand very low latency (0.5 ms and lower). What would be the best solution for this environment?

A) SVC stretch clusterwith XIV and IBM FlashSystems (RamSan), plus enable EasyTier
B) Two XIV systems setup in synchronous mirrorwith SSD5 and VMware SRM
C) Two XIV systems setup in asynchronous mirror with SSDs and VMware SRM
D) SVC with XIV and IBM FlashSystems (RamSan), plus enable Easy Tier

5. What minimum information is required when creating a volume on an XIV system?

A) drive type, disktier, capacity
B) Quality of Service, consistency group, volume name
C) capacity, storage pool, volume name
D) capacity, RAID level, disk group

Solutions: